CN214837173U

CN214837173U - Closed impeller connecting structure of high-pressure multistage graphite pump

Info

Publication number: CN214837173U
Application number: CN202023153100.8U
Authority: CN
Inventors: 巣煜
Original assignee: Jiangsu Shixinjie Pump Co ltd
Current assignee: Jiangsu Shixinjie Pump Co ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-23
Anticipated expiration: 2030-12-24

Abstract

The utility model discloses a closed impeller connecting structure of a high-pressure multistage graphite pump, which comprises a front cover plate and a rear cover plate, wherein an inner gear is arranged in the front cover plate, the inner gear is meshed and connected with an outer gear, a rotating shaft is fixedly connected in the outer gear, a fixing ring is fixedly connected on one side of the front cover plate, a clamping ring is sleeved outside the fixing ring, a blade is clamped in a clamping groove through a clamping block by clamping the clamping ring outside the fixing ring and clamping the blade in the clamping groove through the clamping block, after the blade is installed, the clamping plate is clamped in the fixing ring and rotates the clamping plate, so that the clamping plate compresses the blade, further the limiting and fixing of the blade are realized, the rear cover plate is clamped on the clamping plate after the compression, through the arrangement, the impeller can be quickly installed and disassembled, the traditional integral impeller is replaced, and when the parts arranged in the device are damaged, the whole impeller does not need to be replaced, only the damaged part needs to be replaced, and the maintenance cost and the use cost are reduced.

Description

Closed impeller connecting structure of high-pressure multistage graphite pump

Technical Field

The utility model belongs to the technical field of graphite pump equipment, concretely relates to closed impeller connection structure of high-pressure multistage graphite pump.

Background

The graphite pump is one of corrosion-resistant pumps, and refers to a pump made of graphite for parts in contact with a liquid to be delivered, the chemical graphite pump is generally a centrifugal pump, and an impeller, a volute chamber, a shaft seal cavity, a pipette, a drainage pipe orifice and the like of the pump are all made of impermeable graphite, and the structure material and the characteristics are as follows: graphite or graphite matrix is typically impregnated with a thermosetting phenolic resin.

The existing graphite pump impeller is usually integrated, so that the impeller is not convenient to disassemble and assemble by a user, and when a blade is damaged, the whole impeller needs to be replaced, so that the maintenance cost is increased, and therefore, the closed impeller connecting structure of the high-pressure multistage graphite pump is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a closed impeller connection structure of high-pressure multistage graphite pump to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a closed impeller connection structure of high-pressure multistage graphite pump, includes front shroud and back shroud, the inside inner gear that is provided with of front shroud, the inside meshing of inner gear is connected with the external gear, the inside fixedly connected with pivot of external gear, the solid fixed ring of front shroud one side fixedly connected with, gu the fixed ring outside has cup jointed the snap ring, the inside joint of snap ring has the blade, the inside swing joint cardboard of fixed ring, cardboard one side is connected with the back shroud, the inside swing joint of pivot has the connecting rod, connecting rod one end runs through the pivot and extends to the outside threaded connection of back shroud and has fixation nut.

Preferably, a clamping groove is formed in the clamping ring, a clamping block is fixedly connected to one end of each blade, and the clamping block is located inside the clamping groove.

Preferably, the upper surface of the clamping plate is provided with a rotating groove, and the inner wall of the rotating groove is provided with anti-skid stripes.

Preferably, the inside card of back shroud is equipped with the spacing groove, spacing inslot portion is provided with the locating piece.

Preferably, the inner wall of the fixing ring is provided with an internal thread, the outer wall of the clamping plate is provided with an external thread, and the clamping plate is in threaded connection with the fixing ring through the external thread and the internal thread.

Preferably, an installation groove is formed in the front cover plate, and the inner gear is located inside the installation groove.

Preferably, the clamping ring and the clamping plate are both provided with grooves, the fixing ring and the rear cover plate are both fixedly connected with lugs, and the lugs are located in the grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) this closed impeller connection structure of high-pressure multistage graphite pump, through with the snap ring joint in solid fixed ring outside, and pass through the fixture block joint with the blade inside the draw-in groove, the blade installation back, with the cardboard card inside solid fixed ring, and rotate the cardboard, make the cardboard compress tightly the blade, and then realize the spacing fixed of blade, compress tightly the back shroud joint on the cardboard, through this kind of setting, can install and dismantle the impeller fast, traditional integral impeller has been replaced, and this kind sets up when inside part damages, need not change whole impeller, only need to damage the part change can, cost of maintenance and use cost are reduced.

(2) This closed impeller connection structure of high-pressure multistage graphite pump, through rotating the connecting rod, fix the connecting rod inside the pivot, and overlap the impeller outside the connecting rod, and make inside inner gear of impeller and the outside external gear engagement of pivot, overlap the locating piece outside the connecting rod, and the locating piece slides the locating piece inside the spacing groove of impeller back shroud, realize being connected of impeller and pivot, and through rotating fixation nut, can realize the fixed to impeller and pivot.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a main sectional view of the present invention;

fig. 3 is an enlarged view of the structure of fig. 2 at a;

fig. 4 is an exploded view of the blade of the present invention.

In the figure: 1. a front cover plate; 2. a rear cover plate; 3. an internal gear; 4. an outer gear; 5. a rotating shaft; 6. a fixing ring; 7. a snap ring; 8. a blade; 9. clamping a plate; 10. a connecting rod; 11. fixing a nut; 12. a card slot; 13. a clamping block; 14. a rotating tank; 15. a limiting groove; 16. and (5) positioning the blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model provides a closed impeller connection structure of high-pressure multistage graphite pump, including front shroud 1 and

back shroud

2, 1 inside internal gear 3 that is provided with of front shroud, 3 inside meshes of internal gear are connected with

outer gear

4, 4 inside fixedly connected with pivots 5 of outer gear, 1 one side fixedly connected with of

front shroud

6, 6 outside of solid fixed ring has cup jointed snap ring 7, the inside joint of snap ring 7 has

blade

8, 6 inside swing joint cardboard 9 of solid fixed ring, cardboard 9 one side is connected with back shroud 2, the inside swing joint of pivot 5 has connecting rod 10, connecting rod 10 one end runs through pivot 5 and extends to 2 outside threaded connection of back shroud and has fixation nut 11.

In this embodiment, preferably, a clamping groove 12 is formed in the clamping ring 7, a clamping block 13 is fixedly connected to one end of each blade 8, the clamping block 13 is located inside the clamping groove 12, and the clamping block 13 and the clamping groove 12 are arranged, so that a user can rapidly assemble and disassemble the impeller conveniently.

In this embodiment, preferably, the rotating groove 14 is formed in the upper surface of the clamping plate 9, the inner wall of the rotating groove 14 is provided with the anti-slip stripe, and through the setting of the rotating groove 14, a user can further rotate the clamping plate 9 by rotating the rotating groove 14, so as to detach the clamping plate 9, and through the setting of the anti-slip stripe, the friction force between the inner wall of the rotating groove 14 and a finger is increased, so that the user can rotate the clamping plate 9 more easily.

In this embodiment, preferably, the inside card of back shroud 2 is equipped with spacing groove 15, the inside locating piece 16 that is provided with of spacing groove 15, through the spacing groove 15 inside with locating piece 16 places, can realize the quick location installation of device.

In this embodiment, it is preferred, 6 inner walls of fixed ring are equipped with the internal thread, 9 outer walls of cardboard are provided with the external screw thread, cardboard 9 forms threaded connection through external screw thread and internal thread and fixed ring 6, and through the setting of internal thread and external screw thread, the user of being convenient for rotates cardboard 9, with cardboard 9 and the separation of fixed ring 6.

In this embodiment, preferably, an installation groove is formed in the front cover plate 1, the internal gear 3 is located in the installation groove, and the internal gear 3 is conveniently and fixedly installed in the front cover plate 1 through the installation groove.

In this embodiment, it is preferred, snap ring 7 and cardboard 9 are inside all to be seted up flutedly, gu equal fixedly connected with lug on fixed ring 6 and the back shroud 2, and the lug is located inside the recess, through the setting of recess and lug, be convenient for carry on spacingly to snap ring 7 after the installation and back shroud 2, avoid snap ring 7 and back shroud 2 to rotate.

The utility model discloses a theory of operation and use flow: when the device is used, the clamping ring 7 is clamped outside the fixing ring 6, the blades 8 are clamped inside the clamping grooves 12 through the clamping blocks 13, the clamping plate 9 is clamped inside the fixing ring 6 after the blades 8 are installed, the clamping plate 9 is rotated to tightly press the blades 8, the limiting fixing of the blades 8 is further realized, the back cover plate 2 is clamped on the clamping plate 9 after the clamping plate is tightly pressed, through the arrangement, the impeller can be quickly installed and disassembled, the traditional integral impeller is replaced, when the parts arranged inside the device are damaged, the whole impeller does not need to be replaced, only the damaged parts need to be replaced, the maintenance cost and the use cost are reduced, the connecting rod 10 is fixed inside the rotating shaft 5 by rotating the connecting rod 10, the impeller is sleeved outside the connecting rod 10, and the inner gear 3 inside the impeller is meshed with the outer gear 4 outside the rotating shaft 5, the positioning block 16 is sleeved outside the connecting rod 10, the positioning block 16 is slid into the limiting groove 15 of the impeller rear cover plate 2, connection between the impeller and the rotating shaft 5 is achieved, and the impeller and the rotating shaft 5 can be fixed by rotating the fixing nut 11.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a closed impeller connection structure of multistage graphite pump of high pressure, includes front shroud (1) and back shroud (2), its characterized in that: the utility model discloses a novel motor vehicle front cover plate, including front shroud (1), internal gear (3) inside meshing is connected with outer gear (4), the inside fixedly connected with pivot (5) of outer gear (4), the solid fixed ring (6) of front shroud (1) one side fixedly connected with, gu fixed ring (6) outside has cup jointed snap ring (7), the inside joint of snap ring (7) has blade (8), gu fixed ring (6) inside swing joint cardboard (9), cardboard (9) one side is connected with back shroud (2), pivot (5) inside swing joint has connecting rod (10), connecting rod (10) one end runs through pivot (5) and extends to back shroud (2) outside threaded connection has fixation nut (11).

2. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: clamping groove (12) have been seted up to the inside of snap ring (7), the one end fixedly connected with fixture block (13) of blade (8), fixture block (13) are located inside clamping groove (12).

3. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: the upper surface of the clamping plate (9) is provided with a rotating groove (14), and the inner wall of the rotating groove (14) is provided with anti-skid stripes.

4. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: a limiting groove (15) is arranged in the rear cover plate (2) in a clamped mode, and a positioning block (16) is arranged in the limiting groove (15).

5. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: the inner wall of the fixing ring (6) is provided with an internal thread, the outer wall of the clamping plate (9) is provided with an external thread, and the clamping plate (9) is in threaded connection with the fixing ring (6) through the external thread and the internal thread.

6. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: the front cover plate (1) is internally provided with an installation groove, and the inner gear (3) is positioned in the installation groove.

7. The closed impeller connecting structure of the high-pressure multistage graphite pump according to claim 1, characterized in that: the clamping ring (7) and the clamping plate (9) are all provided with grooves, the fixing ring (6) and the rear cover plate (2) are fixedly connected with lugs, and the lugs are located inside the grooves.